Quantum left-handed metamaterial from superconducting quantum-interference devices

被引：60

作者：

Du, Chunguang ^{[1
]}

Chen, Hongyi ^{[1
]}

Li, Shiqun ^{[1
]}

机构：

[1] Tsinghua Univ, Key Lab Quantum Informat & Measurements Educ Mini, Dept Phys, Beijing 100084, Peoples R China

来源：

PHYSICAL REVIEW B | 2006年 / 74卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.74.113105

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A scheme for a kind of quantum left-handed metamaterial is proposed, which is composed of an array of superconducting quantum-interference devices and a dielectric background. Based on an analytical study, it is shown that (the real part of) the magnetic permeability mu can be negative with low loss and its frequency dependence is different from that of ordinary split-ring resonators. The structural requirements and frequency range for negative permeability are derived. Moreover, the permeability can be smoothly tuned over a large range by another (coupling) field via a quantum interference, which is similar to electromagnetically induced transparency of atomic systems. Negative refractivity with low loss can be achieved by tuning the permeability.

引用

页数：4

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